(There is no such thing as the “wrong form”... you can write a deal on a napkin as long as both sides agree to the terms and they’re reasonable.)

These generally don't require as much infrastructure from the county (septic instead of sanitary sewer, usually no stormwater systems required), and I sell them to consumers wishing to build their own homes on enough acreage to have vegetable gardens, chicken coops, etc.

Or are Keurig cups considered more sanitary because they're sealed for single-users?  

They require it here for sanitary purposes.  

Bought a house, without seeing it, at the local bar using a napkin to write out a purchase agreement.

Or a good ole school “Cash T” CPA trick IRS Agents use to sniff out people who try to pass information that doesn’t meet the scrutiny of a basic truth income formula you can do in 2 minutes on a napkin.

I wanted to be sure my back of the napkin analysis wasn't misleading me.I would rather have more properties because it distributes my risk.

I\'m very good at numbers, but I don't literally enjoy looking at them and basically prefer to "wing it" or usually kind of operate with "napkin analysis\" in a particularly big way.

A coffee/tea tray in the kitchen nook with cups and pretty napkins will warm the space, as well as setting a dining table.

Of course, that is just back of the napkin advice as a general rule.